A rotary cutter pressure plate device

By introducing an elastic reset component and a limiting component into the pressure plate device of the veneer lathe, the adaptive flipping of the pallet assembly is achieved, which solves the diameter adaptability problem caused by the fixed angle of the pallet and improves the applicability and production efficiency of the veneer lathe.

CN224476326UActive Publication Date: 2026-07-10福州三木三森机械有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
福州三木三森机械有限公司
Filing Date
2025-07-17
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The fixed angle of the pallet in existing veneer lathes means that they can only accommodate round logs within a specific diameter range, and cannot effectively clamp wood of different diameters, which affects production efficiency and poses safety hazards.

Method used

A pressure plate device for a rotary cutting machine is designed, which uses an elastic reset component to enable the pallet assembly to self-adaptively flip and adapt to round logs of different diameters. The flexible adjustment of the pallet is achieved through the cooperation of elastic and limiting components.

Benefits of technology

This expands the applicability of the veneer lathe, improves production efficiency, avoids the risk of logs falling and injuring operators, and enhances the adaptability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of rotary cutting machine presser plate device:Including tool plate fixing frame, the tool plate fixing frame is installed for the presser plate mechanism of pressing tool plate, the presser plate mechanism is movably connected with the support plate assembly, the presser plate mechanism is installed with the elastic reset component matched with timber support plate.The utility model design is reasonable, under the action of elastic reset component, support plate assembly can be self-adapting overturn, it is convenient for rotary cutting machine to adapt to different diameter round log, increase the application range of rotary cutting machine, solve the problem that the diameter range of round log is limited due to support plate fixed on the presser plate of existing rotary cutting machine.
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Description

Technical Field

[0001] This utility model relates to a pressure plate device for a rotary cutting machine. Background Technology

[0002] In existing log veneer lathes, the veneer blade is typically fixed using a pressure plate mechanism. This pressure plate mechanism also includes a support plate to limit the log's movement during cutting, preventing it from falling. Currently, the support plate is usually welded to the pressure plate mechanism at a fixed angle (e.g., ...). Figure 5 Such a pallet has certain limitations: when the pallet angle is fixed, the maximum diameter of the falling log is also fixed. If the log diameter is too large, the veneer laminator cannot effectively hold the log, inevitably causing the log to jump upwards during laminating, which may even injure the operator in severe cases. However, if the pallet angle is increased, if the log diameter is too small, the pallet cannot effectively initially stop the log, and before the veneer laminator's two rollers can clamp the log, it falls directly to the bottom of the machine and cannot be laminated at all (e.g., ...). Figure 6 This requires stopping the machine to replace the pressure plate mechanism. Once the pressure plate is replaced, the position of the rotary cutter needs to be readjusted, which seriously affects production efficiency. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a pressure plate device for a veneer lathe. The device is reasonably designed, and under the action of the elastic reset component, the support plate assembly can adaptively flip, which makes it easier for the veneer lathe to adapt to round logs of different diameters, increases the applicability of the veneer lathe, and solves the problem that the existing veneer lathe pressure plate has a limited range of round log diameters due to the fixed support plate.

[0004] This utility model is achieved by the following solution: a rotary lathe pressure plate device: including a blade plate fixing frame, a pressure plate mechanism for pressing the blade plate is installed on the blade plate fixing frame, a support plate assembly is movably connected to the pressure plate mechanism, and an elastic reset assembly that cooperates with the wood support plate is installed on the pressure plate mechanism.

[0005] Furthermore, the pallet assembly includes a limiting pallet, which is rotatably connected to the pressure plate mechanism. The two ends of the elastic reset assembly are respectively connected to the pressure plate mechanism and the side of the limiting pallet away from the pressure plate mechanism.

[0006] Furthermore, the elastic reset assembly includes at least one elastic element, and a limiting element that cooperates with the elastic element is provided between the limiting plate and the pressure plate mechanism. The elastic element is connected between the pressure plate mechanism and the limiting plate on the side away from the pressure plate mechanism.

[0007] Furthermore, the pressure plate mechanism includes a pressure plate A, which is fixed to the blade plate fixing frame by bolts. The blade plate is clamped between the pressure plate A and the blade plate fixing frame. Connecting blocks are symmetrically arranged on the side of the pressure plate A away from the blade plate. The limiting support plate includes a flip plate, which is rotatably connected between the two connecting blocks via a rotating shaft. The two connecting blocks extend downward from the pressure plate A, and screws are screwed onto the extended ends of the connecting blocks. The ends of the screws abut against the blade plate fixing frame.

[0008] Furthermore, a connecting shaft A is horizontally placed between the two connecting blocks. The connecting shaft A is located below the limiting support plate. The elastic element includes an elastic rod, and a spring is sleeved on the elastic rod. A hinge seat is provided on the side of the flip plate away from the pressure plate mechanism. The upper end of the elastic rod is hinged in the hinge seat. A through hole A is opened on the outer periphery of the connecting shaft A for the lower end of the elastic rod to pass through. The two ends of the spring are respectively fixed to the connecting shaft A and the elastic rod.

[0009] Furthermore, a number of spaced rotating seats are installed on the side of the flipping plate near the pressure plate mechanism. The rotating shaft rotates inside the rotating seats, and both ends of the rotating shaft extend out of the rotating seats and are installed on the connecting blocks on the same side. The limiting member includes an abutting block, which is fixed on the side of the rotating seat near the pressure plate A and abuts against the pressure plate A.

[0010] Furthermore, the pressure plate mechanism includes a pressure plate B, which is vertically arranged and perpendicular to the blade plate. One edge of the pressure plate B abuts against the blade plate. The lower part of the pressure plate B near the blade plate is rotatably connected to the blade plate fixing frame. An internally threaded sleeve is provided on the lower part of the side of the pressure plate B away from the blade plate. A screw is screwed into the internally threaded sleeve, and the end of the screw abuts against the blade plate fixing frame. The upper edge of the pressure plate B is a concave arc shape.

[0011] Furthermore, the limiting plate includes a flipping block, which is rotatably connected to the upper side of the pressure plate B via a rotating shaft. A connecting shaft B is horizontally placed on the lower part of the pressure plate B. The elastic element includes an elastic rod, and a spring is sleeved on the elastic rod. A hinge seat is provided on the end of the flipping block away from the pressure plate mechanism. The upper end of the elastic rod is hinged in the hinge seat. A through hole B is provided on the outer periphery of the connecting shaft B for the lower end of the elastic rod to pass through. The two ends of the spring are respectively fixed to the connecting shaft B and the elastic rod.

[0012] Furthermore, the limiting component includes a limiting pin, which is horizontally positioned on the side of the pressure plate B near the flipping block, and an arc-shaped guide groove is provided on the side of the flipping block corresponding to the limiting pin.

[0013] Furthermore, the upper part of the elastic rod is fitted with a spring mounting block, and the upper end of the spring is fixed to the spring mounting block.

[0014] Compared with the prior art, the present invention has the following advantages: it is reasonably designed, and under the action of the elastic reset component, the pallet assembly can adaptively flip, which makes it easier for the veneer lathe to adapt to round logs of different diameters, increases the applicable range of the veneer lathe, and solves the problem that the existing veneer lathe has a limited range of round log diameters due to the fixed pallet on the pressure plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 For Figure 1 Enlarged view of point A (structural schematic diagram of an embodiment of this utility model);

[0017] Figure 3 This is a cross-sectional view of the pressure plate mechanism of this utility model (pressure plate A).

[0018] Figure 4 This is a cross-sectional view of the pressure plate mechanism of this utility model (pressure plate B type).

[0019] Figure 5 for Figure 1 Enlarged view of section B (existing pressure plate mechanism);

[0020] Figure 6 This diagram illustrates the shortcomings of existing technologies.

[0021] In the diagram: 1-blade plate fixing frame; 2-blade plate; 3-blade pressing plate mechanism; 4-support plate assembly; 5-elastic reset assembly; 6-limiting support plate; 7-elastic element; 8-limiting element; 9-blade pressing plate A; 10-connecting block; 11-flipping plate; 12-connecting shaft A; 13-elastic rod; 14-spring; 15-hinge seat; 16-through hole A; 17-placement groove; 18-rotating seat; 19-abutment block; 20-blade pressing plate B; 21-internal threaded sleeve; 22-flipping block; 23-connecting shaft B; 24-through hole B; 25-limiting pin; 26-arc guide groove; 27-spring mounting block; 28-existing blade pressing plate mechanism; 29-existing support plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0025] like Figure 1-4 As shown, a veneer lathe pressure plate device includes a blade plate fixing frame 1, a pressure plate mechanism 3 for pressing the blade plate 2 is installed on the blade plate fixing frame, a support plate assembly 4 is movably connected to the pressure plate mechanism, and an elastic reset assembly 5 that cooperates with the wood support plate is installed on the pressure plate mechanism. In use, the pressure plate mechanism presses the blade plate onto the blade plate fixing frame. When the log falls, the support plate assembly can adaptively flip under the action of the elastic reset assembly, making it easier for the veneer lathe to adapt to logs of different diameters, increasing the applicability of the veneer lathe, and solving the problem that the existing veneer lathe pressure plate has a limited range of log diameters due to the support plate being fixed.

[0026] In this embodiment, the pallet assembly includes a limiting pallet 6, which is rotatably connected to the pressure plate mechanism, i.e., the limiting pallet is rotatably connected to the outside of the pressure plate mechanism. The inner side of the pressure plate mechanism presses against the blade. The two ends of the elastic reset component are respectively connected to the pressure plate mechanism and the side of the limiting pallet away from the pressure plate mechanism, and the elastic reset component is located at the lower part of the limiting pallet. Under normal conditions, the elastic reset component abuts against the limiting pallet, and the limiting pallet is inclined with an angle. When the log falls, the log presses down on the limiting pallet, and under the action of the elastic reset component, the limiting pallet abuts against the log. That is, the limiting pallet can adaptively adjust to the diameter of the log. After the log is processed and rotary cut, the diameter of the log gradually decreases. Under the action of the elastic reset component, the limiting pallet gradually resets until the log is removed from the limiting pallet. Since the limiting pallet is movably connected to the pressure plate mechanism.

[0027] In this embodiment, for the sake of reasonable design, the specific structure of the elastic reset component is as follows: the elastic reset component includes at least one elastic element 7, which can be an existing elastic device such as a spring, leaf spring, or elastic telescopic rod. A limiting element 8 that cooperates with the elastic element is provided between the limiting plate and the pressure plate mechanism. The limiting element limits the flipping of the limiting plate to avoid excessive flipping. The elastic element is connected between the pressure plate mechanism and the side of the limiting plate away from the pressure plate mechanism.

[0028] In this embodiment, the pressure plate mechanism has two forms. The veneer lathe can use either a single-form pressure plate mechanism or a hybrid-form pressure plate mechanism. In addition to the existing components described above, the elastic element can also be one described below in this embodiment. The first form of the pressure plate mechanism is as follows: the pressure plate mechanism includes a pressure plate A9, which is bolted to the blade plate fixing frame. The blade plate is clamped between the pressure plate A9 and the blade plate fixing frame. A clearance is provided on the blade plate corresponding to the bolt. Connecting blocks 10 are symmetrically arranged on the side of the plate away from the blade plate. The limiting support plate includes a flip plate 11. The flip plate is rotatably connected between the two connecting blocks via a rotating shaft. That is, the limiting support plate used in this type of pressure plate mechanism is in the form of a flip plate. The two connecting blocks extend downwards from the pressure plate A. A screw is screwed onto the extended end of the connecting block. The end of the screw abuts against the blade plate fixing frame. Since the middle of the pressure plate A is fixed to the blade plate fixing frame with a bolt, when the screw presses against the lower end of the connecting block, the upper part of the pressure plate A will further press the blade plate. At the same time, the upper end of the connecting block should be an inclined surface.

[0029] In this embodiment, the elastic connection method used for the flip plate is as follows: a connecting shaft A12 is horizontally placed between the two connecting blocks, the connecting shaft A is located below the limiting support plate, the elastic element includes an elastic rod 13, the elastic rod is sleeved with a spring 14, a hinge seat 15 is provided on the side of the flip plate away from the pressure plate mechanism, the upper end of the elastic rod is hinged in the hinge seat, a through hole A16 is opened on the outer periphery of the connecting shaft A for the lower end of the elastic rod to pass through, the two ends of the spring are respectively fixed to the connecting shaft A and the elastic rod body, a placement groove 17 is opened on the outer periphery of the connecting shaft A corresponding to the spring, the through hole A is opened on the placement groove, the diameter of the through hole A is larger than the diameter of the lower end of the elastic rod, that is, the lower end of the elastic rod does not contact the inner wall of the through hole A, the elastic rod mainly plays the role of guiding the spring, the elasticity of the flip plate is mainly provided by the spring, the spring realizes the reset of the flip plate, and at the same time provides support for the flip plate.

[0030] In this embodiment, in order to limit the extreme position of the flip plate, a plurality of spaced rotating seats 18 are installed on the side of the flip plate near the pressure plate mechanism. The rotating shaft rotates in the rotating seats, and both ends of the rotating shaft extend out of the rotating seats and are installed on the connecting blocks on the same side. The limiting member includes an abutting block 19, which is fixed on the side of the rotating seat near the pressure plate A. The abutting block abuts against the pressure plate A. That is, when the elastic member pops up the flip plate, the abutting block will abut against the pressure plate A, thereby limiting the extreme position of the flip plate and preventing the flip plate from flipping excessively upward.

[0031] In this embodiment, the second type of pressure plate structure is as follows: the pressure plate mechanism includes a pressure plate B20, which is vertically arranged and perpendicular to the blade plate. One edge of the pressure plate B abuts against the blade plate. The lower part of the pressure plate B near the blade plate is rotatably connected to the blade plate fixing frame. An internally threaded sleeve 21 is provided on the lower part of the side of the pressure plate B away from the blade plate. A screw is screwed into the internally threaded sleeve, and the end of the screw abuts against the blade plate fixing frame. The second type of pressure plate is used by pressing the lower part of the side of the pressure plate B away from the blade plate with the screw, so that the inner side of the pressure plate B presses against the blade plate, thereby fixing the blade plate. For reasonable design, the upper edge of the pressure plate B is a concave arc shape.

[0032] In this embodiment, for the second type of pressure plate structure: the limiting support plate includes a flipping block 22, which is rotatably connected to the upper side of the pressure plate B via a rotating shaft. A connecting shaft B23 is horizontally placed on the lower part of the pressure plate B. The elastic element includes an elastic rod, and a spring is sleeved on the elastic rod. A hinge seat is provided on the end of the flipping block away from the pressure plate mechanism. The upper end of the elastic rod is hinged in the hinge seat. A through hole B24 is opened on the outer periphery of the connecting shaft B for the lower end of the elastic rod to pass through. The two ends of the spring are respectively fixed to the connecting shaft B and the elastic rod. A placement groove can be opened on the outer periphery of the connecting shaft B corresponding to the spring. The through hole B is opened on the placement groove. The diameter of the through hole B is larger than the diameter of the lower end of the elastic rod, that is, the lower end of the elastic rod does not contact the inner wall of the through hole B. The elastic rod mainly plays the role of guiding the spring. The elastic force of the flipping block is mainly provided by the spring. The spring realizes the reset of the flipping block and provides support for the flipping block.

[0033] In this embodiment, in order to limit the extreme position of the flipping block, the limiting component includes a limiting pin 25. The limiting pin is horizontally placed on the side of the pressure plate B near the flipping block. An arc-shaped guide groove 26 is opened on the side of the flipping block corresponding to the limiting pin. The arc-shaped guide groove corresponds to the movement trajectory setting of the limiting pin on the flipping block when the flipping block is selected. Through the cooperation between the arc-shaped guide groove and the limiting pin, the flipping position of the flipping block is limited.

[0034] In this embodiment, since the lower end of the spring is fixed to the connecting shaft A or the connecting shaft B, in order to fix the upper end of the spring, the upper part of the elastic rod is fitted with a spring mounting block 27, and the upper end of the spring is fixed to the spring mounting block.

[0035] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0036] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0037] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0038] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0039] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A blade pressing device for a veneer lathe, comprising a blade fixing frame, wherein a blade pressing mechanism for pressing the blade is mounted on the blade fixing frame, characterized in that: A pallet assembly is movably connected to the pressure plate mechanism, and an elastic reset assembly that cooperates with the wood pallet is installed on the pressure plate mechanism.

2. The pressure plate device for a veneer lathe according to claim 1, characterized in that: The pallet assembly includes a limiting pallet, which is rotatably connected to the pressure plate mechanism. The two ends of the elastic reset assembly are respectively connected to the pressure plate mechanism and the side of the limiting pallet away from the pressure plate mechanism.

3. The pressure plate device for a veneer lathe according to claim 2, characterized in that: The elastic reset assembly includes at least one elastic element, and a limiting element that cooperates with the elastic element is provided between the limiting plate and the pressure plate mechanism. The elastic element is connected between the pressure plate mechanism and the limiting plate on the side away from the pressure plate mechanism.

4. The pressure plate device for a veneer lathe according to claim 3, characterized in that: The pressure plate mechanism includes a pressure plate A, which is fixed to the blade plate fixing frame by bolts. The blade plate is clamped between the pressure plate A and the blade plate fixing frame. Connecting blocks are symmetrically arranged on the side of the pressure plate A away from the blade plate. The limiting support plate includes a flip plate, which is rotatably connected between the two connecting blocks via a rotating shaft. The two connecting blocks extend downward from the pressure plate A, and screws are screwed onto the extended ends of the connecting blocks. The ends of the screws abut against the blade plate fixing frame.

5. The pressure plate device for a veneer lathe according to claim 4, characterized in that: A connecting shaft A is horizontally placed between the two connecting blocks. The connecting shaft A is located below the limiting support plate. The elastic element includes an elastic rod, and a spring is sleeved on the elastic rod. A hinge seat is provided on the side of the flip plate away from the pressure plate mechanism. The upper end of the elastic rod is hinged in the hinge seat. A through hole A is opened on the outer periphery of the connecting shaft A for the lower end of the elastic rod to pass through. The two ends of the spring are respectively fixed to the connecting shaft A and the elastic rod.

6. The pressure plate device for a veneer lathe according to claim 5, characterized in that: The flip plate is equipped with several spaced rotating seats on the side near the pressure plate mechanism. The rotating shaft rotates inside the rotating seats. Both ends of the rotating shaft extend out of the rotating seats and are installed on the connecting blocks on the same side. The limiting member includes an abutting block. The abutting block is fixed on the rotating seat on the side near the pressure plate A and abuts against the pressure plate A.

7. The pressure plate device for a veneer lathe according to claim 3, characterized in that: The pressure plate mechanism includes a pressure plate B, which is vertically arranged and perpendicular to the blade plate. One edge of the pressure plate B abuts against the blade plate. The lower part of the pressure plate B near the blade plate is rotatably connected to the blade plate fixing frame. An internally threaded sleeve is provided on the lower part of the side of the pressure plate B away from the blade plate. A screw is screwed into the internally threaded sleeve, and the end of the screw abuts against the blade plate fixing frame. The upper edge of the pressure plate B is a concave arc shape.

8. The pressure plate device for a veneer lathe according to claim 7, characterized in that: The limiting support plate includes a flipping block, which is rotatably connected to the upper side of the pressure plate B via a rotating shaft. A connecting shaft B is horizontally placed on the lower part of the pressure plate B. The elastic element includes an elastic rod, and a spring is sleeved on the elastic rod. A hinge seat is provided on the end of the flipping block away from the pressure plate mechanism. The upper end of the elastic rod is hinged in the hinge seat. A through hole B is provided on the outer periphery of the connecting shaft B for the lower end of the elastic rod to pass through. The two ends of the spring are respectively fixed to the connecting shaft B and the elastic rod.

9. The pressure plate device for a veneer lathe according to claim 8, characterized in that: The limiting component includes a limiting pin, which is horizontally placed on the side of the pressure plate B near the flipping block. An arc-shaped guide groove is provided on the side of the flipping block corresponding to the limiting pin.

10. The pressure plate device for a veneer lathe according to any one of claims 6 or 9, characterized in that: The upper part of the elastic rod is fitted with a spring mounting block, and the upper end of the spring is fixed to the spring mounting block.